Differences

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--- connections [2019/08/06 14:33] – visentin
+++ connections [2020/02/27 17:58] (current) – [Physical Situation] ursgraf
@@ Line 1: / Line 1: @@
-====== Overview ======
+====== Electrical Connections ======
-{{ :delta:electric_connections_overview.jpg?800 |}}
+===== System Overview =====
+This overview shows the whole system together with all necessary modules.
+{{ :delta:connections:electric_connections_overview.jpg?800 |}}
-====== LEDs and Buttons ======
+===== LEDs and Buttons =====
-The robot can be equipped with three buttons with LED, which can be used to trigger actions.
+The robot is equipped with three buttons with leds. The buttons can be used to trigger actions. The leds are used to indicate operating states. The next picture shows the pin connections.
-On the first picture the pin connections are shown on the button.
-{{ :delta:led.jpg?300 |Test}}
+{{ :delta:connections:led.jpg?300 |Test}}
-This picture shows how connections have to be performed.
+The buttons and leds must be connected to the breadboard (picture at bottom of this page) where the necessary resistors are placed and where the connectors to the Beaglebone blue board can be made.
-{{ :delta:led_connections.jpg?700 |}}
+{{ :delta:connections:led_connections.jpg?700 |}}
 ^Connector^Pin assignment^BBBlue Channel^Connection^
-^ ^(GPIOx_y -> x*32+y)^ ^
+^ ^ ^ (GPIOx_y -> x*32+y)^ ^
 | GP0 | GPIO3_17 | 113 | Green Button |
 |     | GPIO3_20 | 116 | Green LED    |
@@ Line 22: / Line 23: @@
 |     | GND	 | --  |              |
 | GP1 | LED_GREEN| --  |              |
-|     | LED_RED	 | --  | (ex Blue LED)|
+|     | LED_RED	 | 1   | evtl. Magnet |
 |     | GPIO3_1  | 97  | Blue Button  |
-|     | GPIO3_2  | 98  | Blue LED (ex Magnet)|
+|     | GPIO3_2  | 98  | Blue LED     |
 |     | 3.3V	 | --  |              |
 |     | GND	 | --  |              |
-====== Motors and Encoders ======
+===== Motors and Encoders =====
 The Faulhaber Motors are equipped with a ribbon cable with connector.
-{{ :delta:arm_motor_1.jpg?300 |Test}}
+{{ :delta:connections:arm_motor_1.jpg?300 |Test}}
 Connections:
@@ Line 45: / Line 46: @@
-Motors receive an analog signal directly from the Beagle Bone Blue.
+Motors receive an analog signal directly from the Beaglebone blue board. Encoders are supplied with 5V from the Beaglebone blue. The channel signals A and B of the encoder need a level shifter from 5V to 3.3V. We use a bi-directional level shifter of Adafruit:
-Encoders are also supplied over the Beagle Bone Blue, with 5V.
-A level shifter is needed for A and B channel signals of the encoders.
-The signals need to be reduced from 5V to 3.3V. We used a bi-directional level shifter of Adafruit:
 https://www.adafruit.com/product/757
-{{ :delta:level_shifter_adafruit.jpg?200 |Test}}
+{{ :delta:connections:level_shifter_adafruit.jpg?200 |Test}}
 This is one connection example for one motor, with encoder:
-{{ :delta:example_motor_connection.jpg?600 |}}
+{{ :delta:connections:example_motor_connection.jpg?600 |}}
-====== Breadboard ======
+===== Breadboard =====
-We connected all additional components to a breadboard of Adafruit https://www.adafruit.com/product/1609 and placed it near the Beaglebone Blue. Connections are reported in the following sketch:
+We connect all additional components to a breadboard of Adafruit https://www.adafruit.com/product/1609 and place it near the Beaglebone blue. Connections are shown in the following sketch:
-{{ :delta:bredboard_skizze.jpg?1000 |}}
+{{ :delta:connections:breadboard_skizze.jpg?1000 |}}
-====== Implementation on Robot ======
+===== Physical Situation =====
-{{ :delta_new_1.jpg?600 |}}
+{{ :delta:connections:delta_new_1.jpg?600 |}}